Practice problem
Let x⃗=[862143]\vec{x} = \begin{bmatrix} 86 \\ 21 \\ 43 \end{bmatrix}x=862143 and y⃗=[310]\vec{y} = \begin{bmatrix} 3 \\ 1 \\ 0\end{bmatrix}y=310.
What is x⃗⋅y⃗\vec{x} \cdot \vec{y}x⋅y?
153
279
324
421
Type a concept, like “slope” or “photosynthesis”.
